Can-vent-shielding machine.



NQ. 873,519. PATENTBD DBO. 1o, 1907.

' H. J. D oUGLAss.

CAN VENT SHIBLDING MACHINE.

ArrLloATlougrrLEn MAB. 2z, 1907.

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w/T/vEssEs JJQQQ Zaun: A BY Nd. 873,519. PATENTED DEG. 10, 1907.

E. J. DOUGLASS.

GAN VENT SHIBLDING MACHINE.

APPLLOATION FILED MAR. 22, 1907.-

W/TNESSES /NVE/VTOH MFA w y By A TTOHNE YS TH: "alims :larmes co, wAsmNafoN, '0. c.

'I SHEETS-SHEET 3,

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21d/WWW a Anon/v5 Ys No. 873,519. PATBNTED DBO. 1o, 1907.

H. J. DoUGLAss.

GAN VENT SHIBLDING MACHINE.

APPLICATION FILED MAR. 22, 1907.

PATENTED DEG. 10, 1907.

iH. J. DOUGLASS. CAN VENT SHIBLDING MACHINE.

APPLICATION FILED MAB. 22, 1907.

'7 SHEETS-SHEET 4.

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- ATTORNEYS- TH: Nanms PETERS co., WASHINGTON, b. c,

No. 873,519. PATENTED DEG. 1o, 1907.

HQJ.l DOUGLASS. GAN VENT SHIELDING' MACHINE. l

APPLICATION FILED MAR. 22,l 1 907.

7 SHEETS-SHEET 5.

W/TNESSES THE NoRRrs Psv-:Rs po., wAsHmcroN, n. c

. PATENTED DEQ-1o, 1907. H. J. DoUGLAss.

GAN VENT SHIELDING MACHINE.

v APPLICATION FILED MAR. 22, 1907.

7 SHEETS-SHEET 6.

Afro/swf Ys HMH/F60 PATENTED DEG. 10, 1907.

H. J. DOUGLASS. GAN VENT SHIELDING MACHINE.

APPLICATION FILED MAE. 22, 1907.

7 SHEETS-SHEET 7.

/NVENTOH @www W/TNESSES ATTORNEYS vu: Nnkms Pen-:Rs cn., wAsmNcroN, D. c.

- cially adapted is a vertical, central section through the car- HARRY'J. DOUGLASS, OF BELLINGHAM, WASHINGTON.

CAN-VENT-SHIE LDING MACHINE.

N o. 873,519. Specication of Letters Patent.

Application filed March 22\ 1907. Serial No. 363-821.

'Patented Dec. 10, 1907.

To all whom it may concern: I feeding the chips or shields to the carrier; Be it known that I, HARRY J. DoUGLAss, a Fig. 8 is a plan means `for said citizen of the United States, and a resident of feeding mechanism showing the. driving shaft Bellingham, in the county of Whatcom and of Washington, have invented a new p and Im roved Can-Vent-Shielding Machine, the chips or shields, showing one of said holdof whic i the following is a full, clear, and eX- act description.

The invention contemplates the production of a machine for applying chi s or shields under the vent-hole in cans in order that the contents of the same cannot plug up this hole while the can-top or cover is being soldered in place.

The machine, although being more espeto the a plication of the chips to the can-top and so dering them thereto, may obviously be used for feeding the chips directly into the cans when illed, without the use of the soldering mechanism.

The preferred embodiment of the invention comprises a novel feeding mechanism :for delivering the chips to latter successively removing the chl of a vacuum and thereafter positive y clamping and passing them over acid coating means and through a solder-a plying device, the solder-applying device eing automatically and intermittentl fed by solder feeding rolls. om this point is assed With a chip or shield as carried thereby when passing over the acid rolls; Fig. 14 is a plan of the soldering-iron and its supports Fig. 15 is a front elevation of the same; Fig. 16 is a central, sectional view throu h one of the feed-nuts of the chip or shie d feeding mechanism, said section being taken on the line 16`16 of F 7 s by aid view of a fragment of the rotary table and discharges; Fig. 19 1s a view of the construction shown in Fig. 18, looking in a direction at right. angles thereto; Fig. 20 is a sectional view of the locking means for the feeding mechanism; Fig. 21 is a cross section at the top of the carrier on the line x of Fig. 3, and Fig. 22 is an edge view, partly in section, of the can-cap and vent shield.

The machine as preferably constructed, comprises a bed 1 of rectangul ported at the corners thereof on legs 2. Near one end ofthe bed, bearings 3 are provided, in Which is j ou'rnaled a mam or driving shaft rier, and is delivered by over the center of a cari-top carried by a revoluble table, the can-tops being automatically delivered thereto by a suitable conveyer. As the chips and assembled tops or covers revolve with the table, they are sweated together and are vthereafter automatically discharged upon a second conveyer in readiness to be applied to the cans. 4, said shaft having iXed to its inner end a eference is to be had to the accompanybevel gear 5, and journaled on its opposite ing drawings forming a part of this specificaand outer end a driving pulley 6. This pultion, in which similar characters of reference ley is connected and disconnected withthe indicate corresponding parts in all the figures. Figure 1 is a plan of the machine complete; Fig. 2 is a front elevation of the same; Fig. 3

shaft 4 by a clutch, slidably splined to the shaft and having an angular face adapted to engage with the counterpart face on the hub of the pulley. The sleeve 7 of the clutch is revolubly connected with a controlling lever 8 pivoted at 9 to an arm 10 projecting from one end of and carried by the bed 1.

rier and table, said section being taken on the line 3`3 of Fig. l, and viewed in the direction of the arrows; Fig. 4 is a section on the line 4-4 of Fig. 1, looking in the direction of the arrows Fig. 5 is a side elevation of the solder-feeding rollsv otherwise secured thereto, as shown in Fig. mechanism therefor g Fig. 6 is 3, is a vertical shaft 12 forming' an element tion of the same; Fig. 7 is a view showinglthe of a rotary carriage and having journaled trip for the feeding mechanism employed in thereon a large bevel gear 13 in meshuwith ar form, supcomprising a sleeve 7- Fixed to the bed 1 by a collar 11 bolted or the bevel gear 5 and bearing on the top face of the collar.

Fixed to the top face of the gear 13 and journaled on the shaft 12 is the hub of a disk 14, the latter being radially slotted out at a number of equidistantpoints on its upper face, as indicated at 15, for slidably receiving and forming guides for reciprocating shelves 16. Each of the shelves 16 carries a roller 1 7 journaled on a pin 13 projecting from its under face, as clearly illustrated in Figs. 3

and 4, slots being provided in the disk 14, as

having a pin 42 projecting from its inner face, on which is journaled a roller 43 in engageinent with the groove of the cani 27. rlhe plungers 39 and the blocks 41 fixed thereto are constrained to move in a vertical path as they reciprocate, not only by the bearings 25, but also by rods 44 v.fixed to and projecting upwardly from said bearings in sliding engagement with said blocks.

As best shown in Figs. 2 and 3, bearings 45 carried by the bed 1 have journaled therein a short shaft 46 in alineinent with the shaft indicated at 19, for this purpose. The roll- 4, and has fixed to one end a bevel gear 47 eis17 carried by the shelves 16 pass into the in mesh with the gear 13 from which it is Slot of a cam 20, the latter being fixedly supdriven. Also fixed to the shaft 46 between 80 ported from the bed 1 on standards `21, as shown in Fig. 2'.

Fixed to the top face of the disk 14 is a hub 22, having a iiange at its lower end and the bearings 45, is a gear 43 which is in mesh with a somewhat smaller gear 49 fixed to a countersliaft 50 journaled in bearings 51 depending from the bed 1. The shaft 50 is providing, in connection with a detachable held from longitudinal movement by collars ring 23, a cover for the shelves 16. The 52 fixed to its opposite ends, and also carries body of the hub 22 is constructed with a fixed thereto between the bearings 51, bevel number of radiating arms 24 equal in number to the shelves 16, over which they are disposed, each of said arms carrying at its extremity a bearing 25. Above the hub 22 is fixed to the shaft 1.2 the hub 26 of a cam 27, the latter being in the nature of a slotted. ring, supported from the hub 26 through the intermediary of arms 23 best shown in Fig. 4. Journaled on the upper end of the shaft 12 just above the hub 26 of the cam ring 27, as also on the body of a stud 29 threaded into said shaft, is the head of the carrier comprising a hub 30 carrying blocks 31 at the extremities of arms 32, said blocks being equal in number to the aforesaid bearings 25 and located in alineinent therewith. The head of the carrier is maintained in place by lockenuts 33 threaded on the upper end of the stud 29 and bearing on a washer 34.

Each of the arms 32 of the carrier head is formed with an opening 35 adapted to register as the carrier is rotated, with corresponding openings 36 and 36a passing longitudinally through the shaft 12, the opening 36 being slightly elongated at the top of the shaft, as indicated at 36b in Fig. 21. The openings 36 and 36at are arranged. at right angles to each other and communicate at their lower ends with a pipe 37, which is connected to an air-pump when the machine is in operation.y This pipe, as shown in Fig. 4, is threaded into an opening in one sidey of the fixed collar 11 and the shaft 12. The opening 35 passing through each of the arms 32 leads into one side of a cylinder 38 vertically and centrally fixed in the block 31. Each of the cylinders 38 slidably fit and receive the reduced upper ends of tubular plungers 39, an air-tight joint being formed therebetween by packing nuts 40. The lower portions of the plungers 39 are slidably guided in the bearings 25, and have fixed to them above these bearings, bloclrs 41, each of said blocks j gears 53 and 54, the former being in meshv with a similar gear 55 carried at the upper end of a vertical shaft 56, said shaft being journaled in a bearing 57 adjacent to the gear 55 carried by a support 53 depending from the bed 1. rlhe opposite end of the shaft 56 is jouriialed in a plate 59 supported by hangers 60 also connected with the bed 1. The shaft 56 is extended below the plate 59 and has fixed thereto a gear 61, which is in mesh with a gear 62 journaled on a vertical shaft 63, the gear 62 being .retained in abutting relation to the bottom face of the plate 59 and in mesh with the gear 61 in any suitable manner.

To the bottom of the shaft 63 is fixed a collarl 64 having an upwardly-projccting tooth 65 adapted to be engaged, when the 105 shaft 63 is lifted, with a corresponding tooth 66 carried on the under face of the gear 62.

Journaled on the shaft 63 and resting on the top face of the plate 59 is a flanged collar 67, to the flange of which are fixed at diainetrically opposite points vertical screws 63, each of which has fixed thereto adjacent to the disks 67, gears 69, which are adapted to alternately mesh, as the shaft 63 is revolved, with a gear 70 fixed to a vertical shaft 71 the 115 latter being journaled at its upper end in the bedv 1 in an opening such that the shaft 71 may be moved. at a slight angle to the vertical, as shown in Fig. 4. The lower end of this shaft is reduced and revolubly mounted in a slot in the plate 59, said slot containing a spring 72 normally pressing a block 73 against the shaft and forcing it in the direction of the gear 69. Y

Fixed to the shaft 71 above the gear 70 is 125 a ratchet-wheel 74, shown on an enlarged scale in Fig. 3. This ratchet-wheel is Yengaged by a spring-pressed pawl 7 5 guided within an opening in the outer end of a bell crank lever 76, the latter being journaled on the shaft 71 directly underneath the ratchet- Wheel and held in engagement therewith by a collar 77 also fixed to the shaft 71. As shown in Fig. 8, the pawl 75 may be' disengaged from the ratchet wheel when desired, by a knob 78. The opposite end of the lever 76 is pivotally connected by a pin 79 to a linkv 80, said link being journaled at. its other end on a pin 81 projecting from a block 82, which is adjustable in a T-shaped slot 83 passing centrally through the bottom of a disk 84. The disk 84, as shown in Fig. 3, is fixed to the lower end of a stub-shaft 85 journaled in a bearing 86 carried by a suppprt' 87. The shaft 85 is driven by a gear 88 ed above the bearing 86 and in mesh with the gear 54 carried by the countershaft 50. By this ratchet connection between the shafts85 and 71, it is apparent that the latter will be given an intermittent rotary movement which will be imparted to the gear and the gear 69 in mesh therewith, the extent of each movement of the shaft 71 depending on the adjusted position of the block 81 in the slot 83 of the disk 84.

Fixed to the shaft ,63 just above the gear 69, is a collar 89, serving as a stop for adjustable nuts 90, one of said nuts being shown in detail in Figs. 16 and 17 and comprisinT jaws 91 slidable in a cross-groove 92 provi ed in the body of the nut. The opposed faces of these jaws are threaded for engaging the threads of the adjacent screw 68 when forced together. For operating the jaws 91, a ring 93 revolubly mounted in the body of the nut is provided with eccentric slots 94 shown in dotted outli'ne in Fig. 17, and are slidably engaged with pins 95`fixed to and projecting from the under face of the jaws. An arm 96 is extended to the outside of the nut 90 from the ring 93 and carries a roller 97 journaled on its outerreduced end. At the opposite side of the nut 90 from the arm 96, the same has formed therein a semicircular bearing concentrically surrounded by a boss 98 projecting from the upper face of the nut. This bearing, when the nut is in o erative position, slidably embraces half of t e shaft 63 the latter forming a guide therefor.

Just over the jaws 91, each or the nuts 90 is constructed with a large threaded bore for receiving a vertical lifting tube 99. These tubes concentrically surround the screws 68 and are slidable through a disk 100 revolubly mounted over a slot 101 in the bed 1, see Fig. 4, said disk being centrally fixed to the shaft 63 and retained in place by a boxing 102 fixed to the machine bed.

As best shown in Fig. 9, the disk 100 has formed at diametrically opposite points in its u per face, concentric to the openings tlirough which the lifting tube 99 passes, sockets 103, which rovide seats for the tubular holders 104, t e latter being centrally divided and hinged together near their ends by hinges 105. A ring 106 fixed at the bottom of each holder admits of the tube 99 sliding therein, but prevents the shields or chips, when placed in the holder,` from dropping therethrough while removed from the disk 100. The upper ends of the holders 104 are supported when in place, by a plate 107 through which the shaft 63 is slidable, said plate thaving slots 108 at opposite sides for receiving the holders, as shown in Fig. 10.

As shown in Figs. 2 and 10, the plate 107 is rigidly secured to the collar 67 by rods 107a, which serve as guides for the nuts 90, the latter being cut out at opposite corners, as indicated at 1071D in Fig. 17, for this purpose. After the holders have been removed and filled with the chips or shields, they are first seated in their respective sockets of the disk 100 with the hinges 105 arranged at the outside. By thereafter giving the holders a quarter-turn, the upper hinges are brought under the plate 107, acting to lock the holders in place.

Fixed to the shaft 63 just above the disk 100 is a collar 109,.between which and said disk a coil-spring 110 is interposed and acts to normally draw the shaft to the upward limit of its movement and engage the teeth 65 and 66 carried, respectively, by the collar 64 and gear 62. For normally retaining these teeth out of engagement and the spring 110 compressed as shown in Fig. 7, is a trigger 111 having a shoulder adapted to engage with a collar 112 fixedto the shaft 63 just below the disk 100. The trigger 111 which is pivoted in fixed relation to the disk 100 at 113, has an outwardly fiaring inner edge at its lower end, and is normally pressed in the directio'n of the shaft 63, by a fiat spring 114, the spring being fixed to the trigger and bearing on the adjacent rod 1075*.

After the outer holder 104 has been filled, the arm 96 of the ring 93 is thrown to the left to engage the threads of the outer nut 90 with its respective screw 68. The feeding mechanism is then shifted by hand, when the machine has been started, to revolve about the shaft 63 as a center, disengaging one of the gears 69 with the gear 70 and rengaging the opposite gear 69 therewith, the movement of said mechanism being brought to a stop at this point by a spring-pressed pin 115 Vhaving a conical point adapted to engage with a corresponding recess in the disk 100, as shown in Fig. 20, the pin being mounted in an opening in the boxing 102. Should the teeth of the gears 69 and 70 not exactly intermesh as they come together, the shaft 71 will yield by reason of the spring 72 until said teeth engage. The inner lifting tube 99 will now be intermittently fed upwardly through the action of the ratchet mechanism carried by the shaft 71 and intermediate connecting means. As the last shield in the sie holder is reached, the boss 93 of the nut 90 contacts with the trigger 111, disengaging it from the collar 112 and releasing the shaft 63, which, under the influence of the spring 110, will engage the teeth 65 and 66, causing said shaft to revolve until the roller 97 strikes a cam 116 shown in dotted outline in Fig. 4. This cam releases the jaws 91, which permits the nut and attached feeding tube to drop bodily until arrested in its descent by the collar 89. The impact of this blow disengages the teeth 65 and 66, drawing the shaft downwardly andl rengaging the trigger 111 with the collar 112. The rotary movement which was imparted to the feeding mechanism when the teeth 65 and 66 were engaged, is sufficient to carry the outside holder, which has previously been filled, to operative position, thus permitting the holder just emptied to bereinoved and itself filled with the chips or shields. At each upward movement of the lifting tube 99, one of the tubular plungers 39 is projected by the cam 27 into the holder 104 arranged thereunder. As this movement of the plunger takes place, the opening 35 in the arm 32 by which it is carried, registers with the opening 36 in the shaft 12, placing said plunger in direct communication with an air-pump and creating a vacuum therein. Vith the vacuum thus formed in the plunger, as it is raised from the holder by the cam 27, it carries with it the top shield. This vacuum in the plunger is by reason of the elongation 36b of the opening 36, maintained until the shield has passed a slight distance from the holder as the carrier is revolved, when the adjacent shelf 16 is forced outwardly by the cam 20, the plunger thereafter descending and clamping the shield thereto and passing it over an acid roll 117, the latter being journaled. on a pin 118 projecting from a standard 119 fixed to the bed 1.

Arranged over the acid roll 117 is a dripcup 120, supported on a bracket 121 carried by the standard 119. The roll 117 is provided with a soft, absorbent covering 122, which receives the acid from the cup and applies the same to the chips as they pass thereover. This covering also increases the frictional contact with the chip, causing the-roll 117 to revolve as each chip engages it.

Fixed to the driving shaft 4 between the bearings 3 is a cam 123 having a cam groove in one face, in which travels a roller 124 journaled on a pin 125 carried at the lower end of a rod 126, said rod being forked at this point, as shown in Fig. 3, for pivotally receiving one end of a link 12641, said link being pi'voted at its opposite end in a support 126h rising from the machine bed, as shown in Figs. 1 and 2, this construction acting to maintain the roller 1.24 at all times in the upper end of the cam groove. The upper end of the rod 126 is pivotally connected at 127 to a knife 128, said knife being also pivoted at 129 to a plate 130, the latter being fixed to the upper end of a standard 131 rising from the machine bed 1. Also supported on the standard 131 at the outside thereof', is a bracket 132 on which is journaled two opposed solder feeding rolls 133, said rolls having grooved faces, as clearly shown in Fig. 6, for receiving the solder wire and projecting it through an opening 134 passing through the plate 130 just below the knife 128. The axis of the upper roll is extended beyond the bracket 132, as shown in Fig. 5, on which is j ourn aled a bell crank lever 135. The upper arm of said lever carries a gravity pawl 13G in engagement with a ratchet wheel 137 in fixed relation to the upper roll 133. The opposite arm of the lever 135 is connected to a. lever 13S through the intermediary of a link 139. The lever 133 is constructed with a forked end embracing the rod 126 between collars 140 adjustably lixed thereto. Through the adjustment of the collars 140, the rocking movement imparted to the bell crank lever 135 may be regulated to revolve the solder feeding rolls through the pawl 136 and ratchet wheel 137 an amount equal to the solder feed required on each reciprocation of the rod 126. As the solder is intermittently projected through the plate 1.30, the knife 12S descends and severs it, the severed part dropping into a chute 141 shown in Fig. 2. This chute, which is arranged at the front of the plate 130, discharges into a solder-spoon 142 shown in detail in Figs. 14 and 15. This solder-spoon heated by a gas-jet 143 shown in Fig. 1, said jet also heating a solder-iron composed of two arc-shaped. bars 144, the upper bar being fixed to one end of the solder-spoon. The bars 144 are supported in notched arms 145 at one end, and in a corresponding notched arm and an opposed notched bracket 146 at the opposite end, said arms and bracket being carried by a U-shaped support 147 fixed to the bed 1 of the machine. As the solder is melted in the. solder-spoon by the gas-jet, it runs through a slit 14S in the bottom thereof to the bottom bar 144 of the soldering-iron, `said bars being notched at opposite ends as iinlicated at 149. The notch 149 adjacent to the solder-spoon receives a chip or shield as it passes from the acid-roll 117, said chip acting to raise the upper bar 144 of the soldering-iron and pass between it andV the lower bar and receive a coating of solder at one edge. The chip, after leaving the solderingiron, passes over a second acid-coating roll 117% as shown in Fig. 1, of identical construction to that just described.

Fixed to the main shaft 4, is a sprocketwheel 15() driving a sprocket-wheel 151 by a connecting chain 152. The sprocket-wheel 151 is fixed to the outer end of a shaft 153 arranged longitudinally of the machineand journaled in bearings 154 near the rear side 'and having fixed thereof. Fixed to said shaft between these bearings is a gear 155 shown in Fig. 1, meshing with a gear 156, the latter being fixed to a short' shaft 157 journaled in bearings 158, thereto a pulley 159 over which travels a belt 160 forming a delivery conveyer for the can-tops. The edges of the belt 160, as shown in Fig. 1, pass between guides 161, which act to maintain the cantops or covers in alinement until delivered on an extension 162 from which they are successively gathered up by the rotarytable hereinafter described.

lwhich in turn is itself xed to a rotary table 168, both the pedestal and table being journaled on the aforesaid shaft 165, the table4 also being preferably reinforced on its under side by radiating brace-bars 168% as shown in Fig. 2. The table 168 is of sufficient diameter to pass under the tubular plungers 39 of the rotary carrier, and is arranged in a horizontal plane just below the reciprocating shelves 16. To the top face of the rotary table near its circumference is secured as by the screws shown in Fig. 1, a ring 169, said ring being let into the table to be flush with the top surface thereof, as clearly shown in Fig. 3. The outer portion of the ring 169 is cut out and forms a number of equidistant pockets 170, the latter being arranged at such an angle that they will readily pick up the can-tops or covers from the extension 162 as the table revolves. The seats of the pockets 170 are formed by disks 171, each having an arc-shaped shoulder 172, the top of which is normally iiush with the top of the ring 169. Each disk 171 has centrally depending therefrom and slidably passing through the table, a pin 173. Also depending from the disk at one side of the aforesaid pin is a second pin 174 which is itself slidable in the table andserves as a guide to assist in maintaining the disk in a horizontal position when lit is forced upwardly by the pin 173.

Keyed to the top of the shaft 165 is a cam 175, having a camgroove 176 circumferentially passing about it and containinga number of rollers 177 equal in number to the number of pockets 170 and journaled on arms 178. Each arm 178 has a downwardlyturned finger 179 positioned over one of the disks 171, and is pivotally mounted at 180 between the upwardly-projecting ears of a ring 181 secured to the top of the table 168.

Arranged under the table 168 at one side adjacent to the shaft 153, as shown in Figs.

In Fig. 3 is more particularly shown xed.

sweated together and thereafter 18 and 19, is a fixed cam 182 located in the path of the pins 173. The cam 182 is carried by the machine bed l and is of such height as to lift the disks 171 a slight dis tance as the pins 173 engage therewith.

Fixed to the machine bed 1 at one side of the cam 182 is a standard 183 carrying at its upper end a fixed cam plate 184 constructed with a forwardly-beveled edge 185 in alinement with the disks 171 and in a plane just above the top of the rotary table. A pulley 186 fixed to the shaft 153 just under the cam plate 184 drives a belt 187 in the direction indicated by the arrow in Fig. 18, providing a conveyer for discharging the finished product.

As shown in Fig. 1, the machine bed 1 carries a gas-burner 188 situated over the path of the disks 171 contained in the pockets 170.

After the chips or shieldsleave the acid rolls 117a they are held clamped in the pookets of the shelves 16 by the tubular plungers 39 until the rotary table 168 is reached. At this point the plungers are successively placed in communication with the opening 361 in the vertical shaft 12, whereby a vacuum is created within them, operating to retain the chip as the shelf thereunderis quickly ly withdrawn and passes it over a disk 171 in the rotary table, as indicated in Fig. 1. On the further revolution of the carrier, the vacuum is broken, which lets the chip at the end of the plunger, drop over the vent-hole in the can-top or cover seated on the adjacent disk 171. As the assembled can-top and shield pass under the burner 188, they are chilled as the table travels from this point to the cam-plate 184. When this cam is reached, the disk 171 and the can-cover and assembled top are elevated through the action of the cam 182 and pin 173, bringing the bottom face of the cover in alinement with the beveled edge 185 of the plate 184, as indicated in Fig. 19, the continued movement of the table acting to discharge the cover and shield on the belt 187.

Although I have described the invention in detail in order that the construction and operation may be apparent, I, nevertheless, regard the precise embodiment as not material provided the essential characteristicsare employed as pointed out in the annexed claims.

Having thus described my invention I claim as new and desire to secure by Letters Patent:

1. In a machine of the character described, a rotary carrier, means for feeding blanks to said carrier, means for applying solder to said blanks While carried by said carrier, a revoluble table on which said carrier discharges said blanks, means for feeding cancovers to said table, means for sweating the blanks and covers together on said table, and means for removing the assembled blanks and covers from the table.

2. In a machine of the character described, a rotary carrier, means for feeding blanks to said carrier, means for applying acid to said blanks, means for applying solder to said blanks, a revoluble table on which said carrier discharges said blanks, means for feeding can-covers to said table, means for sweating the blanks and covers together, and means for automatically discharging the assembled blanks and covers from the table.

3. In a machine of the character described, a` rotary carrier comprising plungers and reciprocating shelves coacting therewith and arranged under the plungers, means for reciprocating the plungers to clamp the blanks to the shelves, and means for applying solder to said blanks while clamped.

4. In a machine of the character described, a rotary carrier including as elements shelves, and plungers coacting therewith, means for feeding blanks to said plungers, means for projecting the shelves under the blanks, means for moving the plungers to clamp the blanks to the shelves, and means for applying solder to said blanks while clamped.

5. In a machine of the character described, a rotary carrier including as elements, shelves, and plungers coacting therewith, means for feeding blanks to the plungers,

. means for projecting the shelves under the blanks, means for moving the plungers to clamp the blanks to the shelves, means for applying solder to the blanks while clamped, and means for thereafter sweating said blanks to a can-top.

6. In a machine of the character described, a rotary carrier including as elements shelves, and tubular plungers coacting therewith, means for feeding blanks to said plungers, means for creating a vacuum in said plungers as theblanks are fed thereto, whereby they adhere to the plungers, means for projecting the shelves under the adhering blanks, means for moving the plungers to clamp the blanks to the shelves, and means for applying solder to said blanks while clamped.

7. In a machine of the character described, a rotary carrier comprising reciprocating shelves, reciprocating plungers coacting therewith for clamping blanks or the like to said shelves, means for applying solder to said blanks while clamped, a rotary table on which said carrier discharges, means for feedmg can-covers to said table, and means arranged over said table for sweating the covers and blanks together.

8. In a machine of the character described, a rotary carrier comprising shelves and tubular plungers, a feeding mechanism arranged under said plungers to successively feed blanks thereto, means for creating a vacuum in said plungers as they pass over said mechanism, whereby the blanks adhere thereto, means for projecting the shelves under said blanks as they leave the feeding mechanism, means for moving the plungers to clamp the blanks to the shelves, means for applying solder to said blanks, a rotary table, and means for operating said plungers and shelves to discharge said blanks on said table.

9. In a machine of the character described, a rotary carrier, means for feeding blanks to said carrier, means for clamping said blanks by said carrier as they are fed thereto, means for applying solder to said blanks, a rotary table, means for feeding can-covers to said table, means for discharging the blanks from the carrier on to the covers carried by thc table, means for sweating the blanks and covers together, a conveyer, and means for automatically discharging said blanks and covers upon said conveyer.

10. In a machine of the character described, a rotary carrier, means for feeding blanks to said carrier, comprising a tubular holder, means for intermittently elevating said blanks in said holder, and means for automatically moving said holder to inoperative position when emptied.

11. In a machine of the character described, a rotary carrier, means for automatically feeding blanks to said carrier, comprising a tubular holder, means forintermittently elevating said blanks in said holder, means for automatically moving said holder to inoperative position when emptied, and means adapting said holder to be removed and relled.

12. In a machine of the character described, a rotary carrier, means for feeding blanks to said carrier, comprising tubular holders, means for intermittently elevating said blanks in one of said holders, and means for moving said last-named holder to inoperative position when emptied, said means acting to move said other holder to operative position.

13. In a machine of the character described, a rotary carrier, means for feeding blanks to said carrier, comprising a holder, a lifting tube operating in said holder, and screw threaded means for intermittently feeding said lifting tube.

14. In a machine of the character described, a rotary carrier, means for feeding blanks to said carrier, compri sing a holder, a lifting tube operating in Said holder, a screw Within said lifting tube, a displaceable nut fixed to said lifting tube and adapted to be engaged with said screw, and means for intermittently revolving said screw.

15. In a machine of the character described, a rotary carrier, means for feeding blanks to said carrier, comprising tubular holders, lifting tubes longitudinally movable in said holders, screws within said tubes, displaceable nuts fixed to said tubes, means for intermittently revolving one of said screws, and means for throwing said intermittentlyrevolved screw out of action, acting to bring the other screw and holder into operative position.

16; In a machine of the character described, a feeding mechanism comprising holders, vertical screws, displaceable nuts carried by said screws having lifting means operating in said holders, means controlled by the vertical movement of said nuts to automatically revolve said feeding mechanism to bring said holders to operative and inoperative positions, respectively, means for automatically releasing said nuts from said screws as they revolve to inoperative position, whereby thenuts drop by gravity, and means controlled by the descent of said nuts for arresting the revolution of the feeding mechanism.

17. In a machine of the character described, a feeding mechanism comprising tubular holders, vertical screws, displaceable nutscarried by said screws having lifting means operating in said holders, means conf trolled by the vertical movement of said nuts to automatically revolve said feeding mechanism to bring said holders to inoperative and operative positions, respectively, means for automatically releasing said nuts from said screws as they revolve 'to inoperative position, whereby the nuts drop by gravity, means controlled by the descent of said nuts for arresting the revolution of the feeding mechanism, and a stop for holding said mechanism in operative position when said revolution is completed.

18. In a machine of the character described, a feeding mechanism comprising a holder, a vertical screw, a displaceable nut carried by said screw having lifting means operating in said Iholder, and means for automatically releasing said nut from said screw when said lifting means has ascended to a predetermined point.

19. In a machine of the character described, a feeding mechanism comprising a tubular holder, a vertical screw, a nut engaged with said screw having a lifting tube operable Within said holder, and means for intermittently revolving said screw.

20. In a machine of the character described, a feeding mechanism comprising a divided tubular holder hinged together, means for retaining said holder in closed position, and means vertically operating through the bottom of said holder for feeding blanks therefrom.

21. In. a machine of the character described, a feeding mechanism comprising a divided tubular holder hinged together, means for retaining said holder in closed position, means vertically operating through ed to successively mesh with the gears car-l ried by the screws, means for intermittently revolving said feeding mechanism, and means adapting said shaft to laterally yield, as said gears intermesh.

23. In a machine of the character described, a feeding mechanism com rising holders, screws carrying means for eeding blanks from said holders, means for intermittently operating one of said screws until the blanks contained in one of said holders are exhausted, and means for thereafter automatically throwing said screw out of operation and bringing the other screw and holder to operative position.

24. In a machine of the character described, a feeding mechanism comprising tubular holders, screws having means for feeding blanks from said holders, gears fixed to said screws, a lateral yielding shaft, a gear fixed to said shaft, and means automatically operating to revolve said feeding mechanism to successively intermesh the gears carried by the screws with the gear carried by said shaft.

25. In a machine of the character described, a feeding mechanism comprising tubular holders, screws having means for feeding blanksfrom said holders, gears fixed to said screws, a vertical shaft, a gear fixed to said shaft, means automatically operating to revolve said feeding mechanism to successively intermesh the gears carried by the screws with the gear carried by said shaft, and a ratchet for intermittently driving said shaft.

26. In a machine of the character described, a feeding mechanism comprising divided tubular holders hinged together, means having sockets for retaining said holders in closed position, means vertically operating through the bottom of said holders for feeding blanks therefrom, and means for automatically revolving said holders to inoperative position when exhausted.

27. In a machine of the character described, a feeding mechanism comprising holders, a vertical shaft slidably mounted between said holders, a spring normally forcing said shaft in one direction, a trigger for holding'` said spring under compression, rotary means, means carried by said shaft adapted to be engaged with said rotary means when said trigger is released, and means for elevating the blanks in the holders operable to release said trigger.

28. In a machine of the character described, a feeding mechanism comprising holders, a shaft slidably mounted between said holders, means knormally tending to force said shaft in one direction, a trigger for holding said shaft against the tension of said means, a positively-driven gear having a tooth, a tooth carried by said shaft for engaging with the tooth carried by the gear, and means for elevating the blanks in the holders operating to release said trigger and engage said teeth.

29. In a machine of the character described, a feeding mechanism comprising holders, a shaft slidably mounted between said holders, means normally tending to force said shaft in one direction, a trigger for holding said shaft against the tension of said means, a positively-driven gear having a tooth, a tooth carried by said shaft for engaging with the tooth carried by the gear, means for elevating the blanks in the holders operatingto release said trigger and engage said teeth, means for releasing said elevating means whereby it descends by gravity, and means carried by said shaft for arresting said elevating means in its descent operatingto disengage said teeth and reset said trigger.

30. In a machine of the character described, a feeding mechanism comprising a tubular holder, a screw, a displaceable nut carried by said screw having a lifting means operating through the bottom of said holder, a cam ring for disengaging the nut and screw, and means for automatically operating said cam ring when the limit of upward movement of the lifting means is reached.

31. In a machine of the character described, a feeding mechanism comprising a tubular holder, a screw, a displaceable nut carried by the screw having a lifting tube operating through the bottom of the holder, a cam ring having an arm for operating said nut to release it from the screw, and a cam arranged in the path of said arm for automatically operating it at a predetermined point in the ascent of the tube and nut.

32. In a machine of the character described, a feeding mechanism comprising a tubular holder, a screw, a displaceable nut comprising slidable threaded jaws adapted to be engaged with the threads of the screw, a lifting tube carried by the nut operating through the bottom of the holder, and a cam ring for moving the jaws of the nut into and out of engagement with the screw.

33. In a machine of the character described, a feeding mechanism comprising a tubular holder, a screw, a displaceablc nut comprising slidable threaded ljaws adapted to be engaged with the threads of the screw, a lifting tube carried by the nut operating through the bottom of the holder, a cam ring having an arm for moving the jaws of the nut into and out of engagement with the screw, a roller journaled on said arm, and a cam fixed in the path of said roller for au tomatically operating said ring at a predetermined point in the ascent of the nut.

34. In a machine of the cl'iaracter described, a carrier comprising a fixedv vertical shaft, plungers revolubly supported from said shaft, a fixed cam for reciprocating said plungers, shelves coacting with said plungers, and a fixed cam for reciprocating said shelves.

35. In a machine of the character described, a carrier comprising a fixed, vertical shaft having openings therein, means for connecting` said openings with an air-pump, tubular plungers revolubly supported from said shaft, means for forming communication between the tubular plungers and openings in said shaft at predetermined points, means for reciprocating said plungers as they revolve, shelves coacting with said plungers, and means for reciprocating said shelves.

36. In a machine of the character described, a carrier comprising a fixed vertical shaft, plungers revolubly supported from said shaft, bearings revolubly supported from said shaft in which said plungers are slidably mounted, a fixed cam for reciprocating said plungers, shelves coacting with said plungers, and means for reciprocating said shelves.

37. In a machine of the character described, a rotary carrier comprising means to clamp a blank, means for applying solder to said blank while it is carried. by said carrier, a solder-spoon carried by said solderapplying means, and means for intermittently feeding pieces of solder to said spoon.

3S. In a machine of the character described, a rotary carrier comprising means to clamp a blank, a solder-iron for applying solder to the blank during the revolution of the carrier, said iron comprising a lower bar and an upper bar seated thereon, and means adapting the blank to separate the bars and pass therebetween while clamped by said. carrier.

39. In. a machine of the character described, a rotary carrier comprising means to clamp a blank, an acid roll disposed in the path of the blank and adapted to apply acid thereto during the travel. of the carrier, a drip-cup for feeding said roll, and solderapplying means disposed in. the path of the blank at one side of the acid roll.

40. In a machine of the character described, a rotary carrier comprising means to clamp a blank, an acid-applying roll arranged in the path of the blank while clamped by the carrier, an absorbent matcrial covering said roll, a drip-cup arranged above the roll, and means for applying solder to the blank after passing from said. acid-roll.

41. In a machine of the character described, a rotary table having pockets arranged at its circumference and disposed in a non-radial direction, means for automatically feeding can-tops to said pockets, means for feeding blanks having solder applied thereto, over'said tops, means for sweating the blanks. and to s together during the revolution of the tab e, and means for automatically discharging the assembled tops and blanks from the table. 1

42. In a machine of the character described, a rotary table having pockets formed at the circumference thereof, and movable seats for said pockets.

43. In a machine of the character described, a rotary table having pockets formed at the circumference thereof, vertically movable seats arranged in said pockets, and an arm having a finger operable over each seat.

44. In a machine of the character described, a rotary table having pockets arranged at its circumference and disposed in a non-radial direction, movable seats carried by said pockets, a pin depending from each seat, and a cam located in the path of said pins for vertically ulifting said seats.

45. In a machine of the character described, a rotary table having pockets arranged at its circumference and disposed in a non-radial direction, movable seats carried by said pockets, a dpin depending from each seat, a cam locate in the path of said pins for vertically lifting said seats, and an arm having a finger operating over each seat.

46. In a machine of the character described, a rotary table having pockets formed at the circumference thereof and disposed in a non-radial direction, movable seats for said pockets having segmental portions, means depending from each seat, a cam fixed in the path of said depending means operating to vertically raise the seats, a conveyer,

and a fixed cam-plate operating to discharge from said seats to said conveyer.

47. In a lmachine of the character described, a rotary table having pockets arranged in the circumference thereof and disposed in a non-radial direction, a conveyer' the blanks and tops together during the revolution of the tab e, a second conveyer, and means for discharging the assembled tops and blanks upon said second conveyer.

48. In almachine of the character described, a rotary table having pockets arranged at the circumference thereof and olis-` posed in anon-radial direction with respect thereto, movable seats located in said pockets, meansl depending from the table and connected to said seats for raising them in a vertical direction, and a fixed cam located in the path of said depending means for successively operating the same.

49. In a machine of the character described, a rotary table, movable seats arranged at the circumference of the table, a rotary carrier for feeding blanks over said seats, means automatically operating to successively lift said seats, a conveyer, and means for automaticallydischarging from said seats while lifted to said conveyer.

50. In a machine of the character described, a rotary table, movable seats carried at the circumference of said table, an operating pin connected to and depending from each seat, a guide-pin depending from each seat, a fixed cam arranged in the path of said operating pins ada ted to contact therewith and successively ft the seats, a conveyer, and a fixed cam discharging from said seats while lifted to said conveyer.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

HAR RY J. DOUGLASS.

Witnesses:

S. A. ALLEN, ERNEST. II. GALY. 

